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Assemble a new compressor from spare parts. Do-it-yourself garage compressor: how to do it right. Budget compressor option

Household compressors for painting are in in large numbers in retail chains. Although it is worth saying that their price is quite high and depends on the manufacturer and its power.

Today we will tell you how to make a compressor for painting at home with your own hands. In this case, its price will not be significant, and instructions will be given in which you can see photos and videos and do everything quickly and correctly.

We make at home

First you need to do right choice paint compressor. This will depend on the amount of work being done. If you will use it for commercial purposes and make money on it, then it is worth making it more powerful.

Attention: The higher the power of the compressor, the higher its price. But if you will be painting cars or other small structures, then you should stop at the middle power range.

What you need and how it works

We will collect air compressor for painting, taking as a basis a conventional camera from vehicle/auto.

To assemble a homemade compressor, we need:

  • Vehicle/auto camera. It will play the role of a receiver in our unit.
  • The pump, it is better to use it with a device - a pressure gauge. His role will be to enforce.
  • Repair kit.
  • Awl for comfortable work.

Now, after preparing all the parts, we can start assembling the station:

  • At the first stage, we look to see if the chamber allows air to pass through, there are no holes and pores in it. We pump it up. If during the process we found a depressurization of our object, then we can stick patches to the right places, or treat it with raw rubber.
  • The next step in the receiver is making a hole. For these manipulations, we need an awl. Next, we put the nipple from the camera there, it will act as an outlet for the air stream during the operation of our device.
  • We attach and glue the optional fitting. Just for this purpose, we originally prepared our repair complex. Then we attach the fitting itself. To make sure that the air leaves the container in a normal way, you just need to unscrew the nipple.
  • However, we will not touch the nipple itself, installed on the chamber, its role will be to perform the function of a valve, as well as to maintain the required level of pressure flow. In order to know the pressure volume, we must spray the colorful material onto the surface. If the enamel is applied to the metal in even layers, then our work has been done correctly and at a high level.
  • A pressure gauge can also help us determine the level of pressure. Even after turning on the airbrush, the pressure should also be uniform.

The process of assembling a homemade compressor for painting is relatively simple and does not require special knowledge and skills, but its comfort and convenience begin to be felt immediately. It is much easier to do colorful work with an airbrush than using a balloon.

Attention: It can be added to the last tips that you need to carefully monitor that no dust or liquid flows into the vehicle's camera in any way.

If these elements nevertheless make their way there, then you will have to prepare the paint for work again. At correct work compressor, it will serve for a long period of time, however, if possible and desired, the air should be pumped in automatic mode, it is much more convenient and easier.

We assemble the compressor with our own hands at a semi-professional level

It is possible to assemble such a unit, which, by its properties, will in no way lose to special compressors from leading developers. As a basis, we will take an ordinary refrigerator.

To complete the work, you will need a number of spare parts and assemblies, namely: a receiver, a filter, a variety of adapters, oil, switches and other parts that we will get to know later. Consider the very principle of operation of this unit.

  • To make the process much easier, the engine of our unit will be a compressor from a conventional refrigerator, which was produced in the Soviet Union. The undoubted advantage is the presence of a blower relay. Domestic refrigerators have a higher level of pressure than their foreign counterparts, which is an important advantage. After the block has been removed, it must be prepared for operation, it is necessary to clean it from the corrosion layer.
  • For such work, we use a corrosion converter so that the oxidation reactions stop occurring. So we made preparatory work motor.

Having made all the necessary preparatory measures, we can begin to change the oil. After all, if you don’t particularly dissemble, then almost no refrigeration unit for many years of continuous operation has never been subjected to an oil change. Such a decision justifies itself, since during these works our mechanism is completely protected from external air.

  • To change the oil, we take material from semi-synthetics. It is no different in its properties from compressor oil and contains the additives we need.
  • The second step, we must find three tubes on our compressor, two of them will be in the open state, the second in a sealed state. In the operation of our installation, the first two tubes will serve to force air in different directions (it will enter and exit). To determine the course of air masses, you need to turn on our injection unit in the network. Next, we carefully look at where the air is sucked in, and where, on the contrary, it leaves our unit.
  • The tube, which is in a sealed state, will act as an oil change. From here we have to get rid of its closed part. For such work, we can take an ordinary needle file, we cut along the circumference of the tube. We pay attention that pieces of shavings and metal dust do not end up inside the injection unit.
  • Next, we break off the back of the tube and drain the oil into a special container. This is done in order to determine the subsequent volume of the next flood. Using a syringe, we introduce a new semi-synthetic oil in a small amount.
  • When new oil is introduced, it is important to shut off the entire engine lubrication mechanism. We must pick up the screw, after wrapping it with tape, and twist it into a tube. It must be remembered that from the back of this tube will sometimes flow a small amount of semi-synthetic oil. To avoid this, we need a special oil separator for work.
  • When we have successfully completed the previous assembly steps, we can proceed to the next steps of creating our injection unit. Work begins with mounting on a wooden bed of an engine with a relay. This must be done in such a way that it is like on a frame.
  • Such measures must be taken, since the injection unit relay is very sensitive to position in space. Actions must be precise, as from correct setting will depend in the future on the correct functioning of the operating modes of the compressor.

Air capacity

Where can I get an air tank? For such purposes, we need a spray can, which is used in fire extinguishers. All this is dependent on the fact that they have high strength for the pressure exerted on them, they are ideal as a canopy.

So:

  • As a basis, we take a fire extinguisher under the brand name OU-10. It has a ten-liter air volume and a high level of resistance to the pressure being tested. We unscrew the locking mechanism, then install the transition device.
  • If traces of rust come across, then you need to get rid of it promptly. using a corrosion converter. We place the above liquid inside the can and begin to shake it.
  • After the rust is removed and there are almost no traces of it left, we attach the cross. In the course of this work, we have created two important spare parts for the future injection unit.

We carry out the assembly

So that the parts do not interfere with each other, they must be immediately installed on the basis. For its manufacture, we take a board, the engine of the future injection unit and parts of the fire extinguisher will be attached there.

  • We use special threaded studs to install the engine on a wooden base. We put the studs into pre-made holes. Nuts will come in handy as never before. You also need to drill a hole for attaching a fire extinguisher. Other sheets are attached with self-tapping screws to our wood base.
  • We put the receiver on a vertical level, we need three sheets of plywood for such purposes. In one plywood, he makes a hole for attaching a spray can. We attach other sheets with self-tapping screws. We glue them with the receiver sheet.
  • In advance, we hollow out a hole in the base of wood for the receiver and its lower part. In the end, so that the installation can move, we will assemble ordinary wheels from ordinary furniture that are attached to the base.
  • Once we have completed the above collection work, we need to secure the protection functions of our installation from the dust flow. For these purposes, you will need a gasoline filter, which usually plays the role of coarse filtration. Its task is to become an air intake in our injection unit.
  • Next, we take the rubber hose and compressor tube. There is a low level at the compressor inlet, it is important to remember this, i.e. we do not need to increase the contact properties with the help of clamps.
  • Those. we have already made an inlet filtration system for our compressor. At the outlet of the installation, we attach an oil separator, which will protect the device from the penetration of parts of the dust stream. We will also need a filtering power supply mechanism. Since the level of pressure at the outlet of the system is high, here we will need vehicle clamps.
  • Now we smoothly got to the oil separator filter. We make its commissioning by connecting it to the input part of the gearbox. The reducer is used for decoupling and the output part of the compressor, i.e. in the output part we screw the crosspiece on the left, on the right side we attach a pressure gauge (this is how we will monitor the pressure level). We fix the control relay on the upper part of the crosspiece.
  • The control relay allows you to adjust the height of the discharge pressure, as well as, if necessary, close the power supply to the compressor.
  • With the help of these spare parts, we will turn on our injection unit if the pressure level is at a low level and, on the contrary, turn it off if the parameters rise sharply.
  • To set the recommended compressor pressure level, you need to use the relay springs, there are two of them. The largest spring is used to create low pressure, the small spring is for maximum pressure, and it also serves to adjust the shutdown of the unit.
  • PM5 was originally assembled for water supply, they are simple two-pin switches. One contact in our version is designed to work in a network where the voltage is at the level of two hundred and twenty volts, while the other contact works for communication with the injection unit.
  • We make power through a toggle switch for connecting to the second input with a pressure unit. If there is already a toggle switch in our circuit, we have the right to quickly turn off the system.

It goes without saying that all contacts must be properly soldered and insulated. Now we can paint our compressor with peace of mind and start trying to paint with it.

Monitor system pressure

Now that our setup is ready, it's time to check how it works or run some tests. We connect the airbrush or spray gun. Without touching the toggle switch itself, we connect our system to electrical energy.

  • We set the relay to the lowest possible pressure level and connect the injection unit to electricity. We look at the indicators and characteristics on the pressure gauge, monitor the level of pressure supplied. After we have found out that the relay turns off the compressor engine, we look at the contacts and their tightness properties.
  • To find out the tightness, we use a regular soap solution. If the entire installation has successfully passed all the tests, then we must definitely remove the air below the level to start the entire mechanism of the blower unit. If the pressure level reaches the required limits, then the relay starts the compressor system itself. If everything works as it should, we can start colorful work.
  • To paint metal surfaces and bases, initially there is no need to prepare the very basis for the work. We are only required to make the necessary level of pressure on our injection unit.
  • Such tests give us a chance to measure those necessary specifications, which will allow you to lay layers of paint evenly. It is also necessary to remember that such colorful work was carried out at a minimum of operation of the injection unit.

Instead of output

After completing all the above works and putting our injection unit into operation, we can sum up the first results. Thus, the very process of assembling a compressor is not difficult for all vehicle owners; special knowledge and skills are not needed here at all.

  • It is foolish not to say that the second type of compressor is much more difficult in terms of its assembly and the availability of the necessary spare parts and materials. However, due to the pressure in automatic mode and the special system for starting the entire injection unit, such a compressor is the most convenient and pleasant to use.
  • Also, you will not need to monitor the receiver. This machine can also be used for painting indoor doors or other surfaces.

Attention: It is not difficult to make a paint compressor yourself, it is also important to do its regular maintenance. Especially often they fail due to not changing the oil. Therefore, monitor its quality in the first place.

You now know how to choose a compressor for painting and you can do everything yourself. Pay attention to the tightness of the joints and then the compressor will serve you for a long time.

If you perform car repairs and maintenance on your own, then you know that the compressor is simply indispensable in different types works. For example, you are repairing the chassis - you need to remove all the dirt and metal chips, it is also necessary for painting the car. Since the equipment is expensive, it does not hurt to know how to make a compressor with your own hands.

The principle of operation of the compressor

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The compressor works very simply. The motor drives air into a certain container, and there the air is under pressure. For example, for painting a car, the compressor works in such a way that excess air that can harm work is removed through special exhaust valves. Due to this control, the paint from the spray gun lies evenly on the body area. Essentially, a car paint compressor pressurizes the paint in a spray gun. Without constant pressure, such a “smooth operation” cannot be achieved, so setting up an air compressor for painting a car is also quite an important job.
So, how to make a compressor without having a large selection of elements? We'll figure it out different variants- from an elementary compressor to a semi-professional one.

The simplest air compressor

The simplest homemade air compressor for painting a car body is a high-pressure supercharger made on the basis of an old car chamber. It will be used as a receiver (a vessel designed to accumulate any gas). In our case, the receiver will accumulate air. A homemade receiver from a car camera is a great option for a small amount of work.
For work you will need:

  • car camera;
  • car pump with pressure gauge;
  • nipple from an unnecessary camera (not from the one we already call the receiver);
  • a set of elements with the help of which car rubber is repaired;
  • tool kit.

So, we have a car camera that replaces a full-fledged receiver. It is important that the chamber is intact and without punctures, because the receiver is always under pressure. Now you need to take care that it will work as a supercharger. The simplest homemade compressor for painting can be equipped with a simple car pump with a pressure gauge - this will be the supercharger. You can start making a compressor.

  1. We take our receiver (camera) and carefully check whether everything is tight and reliable there. You can check the receiver with a pump. If the receiver holds air, then everything is fine - move on. If the receiver has leaks, we repair the rubber.
  2. When the receiver is ready, you need to make a hole in it with your own hands, where an additional nipple will be placed. In the finished state, compressed air will flow from it. We need to carefully glue the additional fitting with special glue, and then connect it to the spray gun. We unscrew the nipple with our own hands - if the air flow calmly exits, then the repair was carried out correctly. We leave the nipple in the native nipple of the chamber, which will now work as a valve that removes excess pressure.
  3. Next, we must determine the pressure compressed air. Excess pressure can be calculated on the pressure gauge, it should not be spasmodic.

Assembling such a unit is quite simple. Yes, this is not a professional unit, but a home-made compressor for painting a car will work just as well. The model will work well, but if you automate the air injection, the work will go faster.

Homemade air compressor from a car engine

So, we decided to try to assemble a more serious air compressor with our own hands, which will be based on an automated supercharger. It is worth saying that such a home-made semi-professional compressor for blowing and painting a car will cost more in terms of materials, so you should think about how often you will use it. If not, then it is better to leave the first option.

Materials for an automated supercharger

  • receiver - suitable capacity;
  • engine;
  • manometer;
  • shield for fastening parts;
  • a filter that separates oil and moisture from the air;
  • gasoline filter;
  • coarse filter;
  • pressure control relay;
  • rust converter;
  • additional materials and tools: a file, a pharmacy syringe for filling oil, sealant, nuts, a mains voltage switch, paint for metal, a set of tools.

Preliminary work

Any electric motor can be taken as a power unit, it is desirable that it be fully ready, that each filter works properly, the pressure control switch gives the desired results, etc. Before starting work, it is best to thoroughly clean the supercharger with an anti-corrosion solution. If any filter is clogged, it must be changed. An oil change would also be helpful. The supercharger (engine) must have an outlet to three tubes:

  • for oil change;
  • for air inlet;
  • for air outlet.

Engine ready for installation

You can determine where the air supply is and where the exit is by briefly turning on the engine. One of the tubes is sealed (for oil change). When you open it, make sure that the sawdust does not get inside. We need an oil separator, because some of the oil can enter the air flow into the air streams that the supercharger produces. The filter must be screwed onto the air supply pipe; car clamps are best suited for fastening (not one car repair is complete without these elements).
As for the receiver for the car compressor, it can be a cylinder, for example, gas or from a fire extinguisher. The main thing is that it is suitable even for the highest pressure. Attention! When handling the cylinder, make sure that it does not contain flammable substances.

Shield for fixing parts with installed receiver

The container must be thoroughly rinsed and cleaned of rust and other contaminants. The pressure switch also needs to be thoroughly cleaned of rust.
Everything is clear with the board - we use it for a shield on which the motor, supercharger and pressure switch will be placed. All parts of the structure must be firmly fixed on the stand. It is best that the relay with the motor be in the same position as before. If you removed it from some device, repeat the circuit, not forgetting the relay and oil separator. Using auto seals and adapters, you can easily connect the cross with the receiver (cylinder). It is desirable to paint the entire structure to protect against rust.

How assembly is carried out

Compressor assembly

So, the receiver must be securely fixed to the shield (you can also use any case). The main plane of the stand or shield can be placed on mini rollers from old furniture. Check that the filter is securely installed on each necessary element of the autocompressor. In addition to the fact that the auto compressor must have an oil separator and a coarse filter, take care of the air intake. It is quite simple to make it with your own hands. A tube is taken through which the compressor for painting a car takes water, and then a coarse filter is installed on it. Next, the filter with your own hands must be connected to the gearbox. Without this element, normalization of pressure will not be performed. Its outputs are also connected to the cross of the receiver with your own hands. Two more crosses will remain - they can be used for a pressure gauge, as well as for connecting to an airbrush. In words, this all seems too complicated, but knowing the principle of operation, you can assemble a compressor for painting a car if you have a blower motor and receiver on hand.
For safety reasons, so that the connections are not broken, you need to periodically run the compressor for the car. This action is performed using a relay. The best pressure switch models at the moment are PM5 and RDM5. These are elementary switches that are regulated by means of springs. The supercharger is connected to the zero phase. It is best to put a toggle switch on the main phase wire. After all, you may always need to abruptly turn off the device.

It is on this basis that home-made semi-professional compressors for painting and blowing cars work. Of course, experience is needed to make such a unit with your own hands. But the main factor is the knowledge of the scheme of all tubes. If you figured this out, then do mechanical work won't be difficult. Servicing it is quite simple - we change the oil, just like in a car. This is easy to do if you have a homemade mini compressor for personal use.
You can use a mini compressor, or you can take a powerful ready-made unit from KAMAZ. But if you take a powerful compressor from KAMAZ, then it will need additional repairs, or rather, adaptation for your purposes at home. Therefore, this option is not very popular.

It is possible to carry out high-quality painting of a car in garage conditions. To do this, you need to arrange a convenient spray booth, as well as equip essential tool. Buying expensive equipment for many car owners can not afford, so you have to make a compressor for painting a car with your own hands. This operation is much cheaper.

For the competent manufacture of this device, you will need to familiarize yourself with the theoretical part. Thanks to this preparation, in the process of subsequent work, it will be possible to avoid the appearance of graininess, shagreen or dust particles mixed with paint on the painted surface.

The operation of almost any compressor, factory-made or home-made, is based on the same principle. In a sealed cavity is formed high blood pressure, which is higher than atmospheric, and then it is directed and dosed using.

For injection, a mechanical or manual way. In the second case, energy savings are obtained, as well as independence from the presence of power supply points near the working area. In the case of automatic air supply to the working cylinder, it will be necessary to control the presence of oil for the air compressor.

Before you make a compressor for painting a car yourself, let's prepare the tools. There is a way in which the working element is a car camera. To do this, select the components according to the list:

  • working chamber from a car or truck;
  • a pump with a built-in pressure gauge for pressurizing;
  • additional nipple for the camera;
  • hard awl;
  • camera repair kit.

We first check the tightness of the selected chamber. To do this, it is pumped up and lowered into the water. If leaks are found, be sure to get rid of them.

We mark in the free space the point where the installation of the second nipple is supposed. In this place we make a hole with an awl. The fitting must be glued using a repair kit. Through it, a uniform air supply will be ensured.

The initial nipple built into the chamber is necessary to maintain the working pressure at the required level. The performance of the installation is determined by the final result. When the paint is evenly distributed, this indicates correct assembly and sufficient pressure in the container. The pressure gauge built into the pump will help you choose the right parameter.

When such a home-made compressor for painting a car is working, you should try to prevent moisture and small debris from getting inside the cavity. This will ensure maximum cleanliness of the painted surface. It is also desirable to prevent condensation inside the chamber.

advanced compressor

With proper assembly and regular maintenance of the device, a home-made compressor can last much longer than the factory one. With all this, it is unlimited in repair parts, and can also be improved and refined from time to time.

The basis for a more progressive model are the elements of the old refrigerator:

  • receiver for compressor;
  • pressure gauge 10 atm;
  • a relay that provides pressure control inside the compressor;
  • adapters with pipe thread;
  • gasoline cleaning filter;
  • a reducer with the filter protected from moisture and oil;
  • water cross with ¾ inch thread;
  • electric motor for compressor operation;
  • hydraulic hose clamps;
  • semi-synthetic oil;
  • oil resistant hose;
  • copper pipes;
  • medical syringe;
  • wooden plate;
  • rust remover;
  • power system filter;
  • hardware elements;
  • furniture wheels;
  • sealant, sealing tape;
  • a small file or saw for metal;
  • electric switch (220 V).

The advantage of earlier models of refrigerators is the presence of a starting relay. Also positive is the rather powerful pressure that the compressor develops. Using a rust converter, we clean the problem areas on the body and working elements of the unit being prepared.

It is advisable to carry out a small maintenance of the compressor, replacing the oil in it with a semi-synthetic one. Modern oils contain a sufficient amount of additives to ensure long compressor operation. Its design has three nozzles, one of which is hermetically sealed. In the other two, air circulation will be carried out. To determine the direction of flow, you will need to connect the device to the mains.

The sealed pipe hides half the oil. Having bitten off with wire cutters or sawed off its end with a needle file so that the chips do not get inside the cavity, carefully drain the liquid into the prepared container. This will determine the required amount of oil to replace. It must be infused with a syringe of the same volume that was removed through the tube.

After topping up, we plug the hole with a screw or self-tapping screw wrapped around the thread with sealing tape. Now begins the installation of the entire structure on wooden base or a welded frame from a building profile. Compressors from refrigerators are quite sensitive to position in space. To determine it, there is a special arrow on the case. The correct operation of the entire node depends on this.

A regular foam or powder fire extinguisher is suitable as a container for air. It is advisable to select it so that the cavity is at least 10 ... 12 liters. Usually they are tested to withstand pressure up to 15 ... 20 MPa. To release the cavity, we unscrew the adapter with the locking and starting device.

If areas with corrosion are found on the surface, then it is necessary to eliminate them., preventing the spread of rust, which can lead to through damage. Such phenomena are unacceptable, as they contribute to the depressurization of the container.

A rust converter can be poured inside the cavity and shaken well, then poured and dried. Outside, we fix the water cross.

General installation of the structure

The most convenient option would be the location of all parts on wooden base. For installation, drilling holes and fixing the elements with bolts and nuts are used. You can also use a sheet of plywood, to which everything is easily attached with self-tapping screws. 360 movable wheels are installed on the bottom plate or frame for greater mobility.

Gasoline coarse filters will help provide sufficient protection against the ingress of fine dirt or moisture. They are usually mounted on the side of the air intake. An inlet tube is placed on this side, which can be held even without clamps, since there is no high pressure in this place.

On the outlet side, you will also need to install a protective filter that will protect the air flow from moisture and oil particles from the compressor. Fuel filters are used as such a blocker. Without clamps, such a knot will not stand.

We will mount an adjusting relay, as well as a pressure gauge to control the pressure, into the output cross. We connect the free plug to the gearbox. Using the relay, it will be possible to adjust the pressure height range in the receiver.

As executive mechanism applied RM5 (RDM5). It was originally used in plumbing systems, but since it is a two-contact switch, it will work in our case. One contact goes to the connection with the supercharger, and the second to the “zero” of the 220 V network.

Using the toggle switch, we connect the phase of the network. It will help you quickly, if necessary, turn off the power supply, so as not to run to the outlet for this.

Pressure monitoring

Having collected all the elements together, we need to check the performance of the mechanism. To do this, we connect the device to the mains, and set the relay to the minimum pressure supply. We monitor the pressure gauge readings during system operation.

After checking the relay, you will need to identify possible places of loss of tightness. For this operation, a prepared soap solution is used. It is made thick in the form of gruel. We coat problem areas with a solution on a running compressor. If air bubbles appear, then seal the leak.

During a possible drop in pressure to critical values, you can install additional air pumping with the compressor turned on. After receiving positive results during the test, you can.

Satisfactory pressure for the operation of the system is selected empirically. In this situation, it is necessary to choose the settings so that everything happens at the minimum values ​​​​of the blower drawdown. With this design, you can paint any surface.

Budget compressor option

Building a paint compressor can be quite economical. It can also be based on elements from an old refrigerator, and any airtight cavity is usually used for a container with air:

  • Produced oxygen cylinder. It is able to withstand high pressure parameters, but has the disadvantage of a large mass.
  • propane tank. It has the same positive qualities as oxygen.
  • Fire extinguisher. Models with a volume of 10 liters or more will fit, as they have a better ability to carry high pressure. However, at the exit they have a metric thread.
  • Hydraulic accumulator. The cavity has a good volume with sufficient working pressure. Requires some modifications to get rid of the membrane and metric threads.

At the next stage, we combine the receiver with the compressor. It is necessary to provide for maximum compatibility of connectors for connecting a relay capable of turning off the compressor at the right time. You can also use RDM-5.

The pressure gauge is selected with maximum values ​​​​at the level of 10 atm. We select fittings, tees or corners with an inch thread. This will facilitate assembly and ensure maximum air passage through the channels. To accommodate the structure, the use of chipboard is allowed.

As a result, the list of necessary elements will be in the following configuration:

  • Prepared compressor;
  • Receiver for distribution of air flows;
  • Pressure switch connected to the network;
  • Pressure gauge up to 10 atm;
  • Filter reducer;
  • Emergency release valve;
  • Transitional threaded elements;
  • Sealing elements (tape, paste, etc.);
  • Wiring, plugs and on/off elements;
  • Hose protecting against moisture and oil;
  • Particle board;
  • Hardware elements, wheels, gaskets.

If you are afraid of the number of spare parts and the complexity of manufacturing, you can always purchase an inexpensive factory-made compressor.

Mounting the receiver in the form of a hydraulic accumulator will be the easiest, as it is already equipped with the necessary brackets. They can also be used to mount the compressor from above. Get a two-tier design.

As fasteners, it is desirable to use bolts with hooks, passed through pre-drilled holes. This will provide greater structural stability.

It will be possible to reduce the influence of vibrations with the presence of rubber / silicone gaskets used as damping.

With the help of prepared flexible tubes, we connect the compressor outlet and the inlet to the receiver. Be sure to put protective mechanisms in the form of filters. Power is supplied to the switch and relay. The structure must be grounded.

Our farm already had a home-made compressor made from an MTZ tractor compressor and a 1.5 kW three-phase asynchronous motor - single-phase power supply. But he was already living out his last days - the engine windings burned out, and the compressor itself barely created 6 atmospheres, and had low productivity.

The idea to make a compressor based on the Zil-130 unit has been flying for a long time. A new sealed Zil-130 compressor was found, two used ones were bought, and even one, although a new one, was found in a village dump. But since the tractor compressor somehow worked, and its engine was frankly weak, the idea remained an idea.

But one day the engine turned up, which once stood for a long time on the fan in the ventilation chamber. Whether he was a worker or not, it was not clear, because for many years he had been gathering dust filmed in an abandoned closet. He gave himself up for self-pickup and there was no question to pick up or not.

The engine was brought to the village.

The designations on the motor were as follows: Three-phase asynchronous motor, power 5.5 kW, rated speed 1425, star connection. It became clear that the engine is powerful, but this will require a large capacity of starting and operating capacitors to connect to a single-phase network. I did not want to connect the engine according to the tractor compressor scheme, because it was precisely because of such a connection that its windings burned out. It was decided to convert this motor into a single-phase one with a three-phase capacitor start. I found a diagram on the internet.


The engine was disassembled, and a wire was soldered to the internal connection of the three windings and brought out. Engine tests were successful.

The idea began to quickly materialize. For the frame, two pieces of channel Ш100 and a piece of L 50 angle were used. They are welded together.

A continuous seam is laid in the compressor installation area. As they say, the first pancake is lumpy, so it was decided to use a compressor from a landfill.

The compressor was released in 2007 and apparently stood on some combine. Disassembly showed: Loss of tightness of one inlet valve, and in the same cylinder there were rings, the liners were not worn out but had annular scoring (from the oil channel). It became clear that he would live. The valve is lapped, the rings are wetted, the burrs are removed and three holes with a diameter of 3 mm are drilled in each connecting rod and countersunk with a 10 mm drill. Removed oil valve and spring. An oil filler hole was drilled along the axis of the crankshaft. A breather was added.

The assembled compressor briskly pumped air. After installation on the frame, oil was poured through a 1.5 mm thick paronite gasket lubricated with sealant.


A heavy pulley from a refrigeration compressor, also found in a landfill, is put on.

The belt was taken from a gazelle as the most easily accessible one. A Ford crankshaft pulley was put on the engine.

A belt is thrown over both pulleys, the engine is exposed and mounting holes are drilled. A corner was also welded for installing a belt tensioner (from Opel).

The compressor briskly pumped from scratch, but could not pump up, the motor could not accelerate. Then the idea came up to make an unloader.


Now the compressor pumps with any pressure.

The receivers are taken from the tractor; the air passes through the pressure regulator with a filter-drier.


The configuration of the receivers also avoids the direct entry of moisture to the outlet. A reducer with a dryer is installed at the outlet.

Later, a mobile receiver was made from the gas cylinder of an Opel car.